Shares in Aspiro soared by 1,000 per cent on Tuesday as investors clamored for a stake in the Swedish music streaming business bought by rapper Jay-Z this month - but face big losses as they will be forced to sell out to the U.S.

Worldwide investment in renewable energy rose 17 per cent in 2014 to $270 billion, throwing off the effects of lower oil prices. It was a reversal of a downturn in interest in renewables over the past two years, according to the United Nations Environmental ...